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    Electronic Devices With Relative Humidity Sensors
    1.
    发明申请
    Electronic Devices With Relative Humidity Sensors 有权

    公开(公告)号：US20250102441A1

    公开(公告)日：2025-03-27

    申请号：US18754521

    申请日：2024-06-26

    Applicant: Apple Inc.

    Inventor： Fehmi Civitci ,  David D. Dashevsky ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Mark T. Winkler ,  Dawei Lu

    IPC: G01N21/77 ,  G01N29/02 ,  G01N29/24

    Abstract: An electronic device may include a housing and relative humidity sensor in the housing. The relative humidity sensor may include a relative humidity-sensitive layer, a light emitter that emits light into the relative humidity-sensitive layer, and a light detector that detects light that has passed through the relative humidity-sensitive layer. The relative humidity may be determined based on the detected light. For example, the light may be measured interferometrically to determine a path length of the light to determine the relative humidity. Alternatively, the light may be scattered by plasmonic nanoparticles in a relative humidity-sensitive material to determine the relative humidity. As other examples, polarized light may pass through the relative humidity-sensitive layer and measured to determine the relative humidity, or light may be used to form sound waves that may be measured to determine the relative humidity. In this way, a light-based relative humidity-sensor may make relative humidity measurements.

    Electronic Devices With Display Aging Compensation
    3.
    发明申请
    Electronic Devices With Display Aging Compensation 有权

    公开(公告)号：US20210043130A1

    公开(公告)日：2021-02-11

    申请号：US16535734

    申请日：2019-08-08

    Applicant: Apple Inc.

    Inventor： Zhuoran Dai ,  Shen Ren ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Mahdi Nezamabadi ,  Ates C. Dumlupinar

    IPC: G09G3/32 ,  G01J1/42

    Abstract: An electronic device may have a display. The display may have light-emitting diode pixels or other pixels. Due to aging-induced degradation of the pixels, the output intensity and color of the pixels may vary over the lifetime of the display. Control circuitry in the device may use an ambient light sensor to measure ambient light and stray display light. The display light measurements may be used in monitoring aging effects so that the control circuitry can compensate for aging-induced pixel degradation. Display light measurements may be made over a sequence of image frames. The image frames in the sequence of frames may include white and black frames or frames of different colors interleaved with black frames. Different frame intensities may be used during measurements of stray display light to gather gamma curves for the display.

    Electronic Devices Having Ambient Light Sensors With Lens Diffusers
    5.
    发明申请
    Electronic Devices Having Ambient Light Sensors With Lens Diffusers 审中-公开

    公开(公告)号：US20190333431A1

    公开(公告)日：2019-10-31

    申请号：US15967367

    申请日：2018-04-30

    Applicant: Apple Inc.

    Inventor： Christopher M. Dodson ,  Prashanth S. Holenarsipur ,  Serhan O. Isikman

    IPC: G09G3/20 ,  G02B5/02 ,  G02B1/04 ,  H01L31/0232 ,  H01L31/16 ,  G02B3/00

    Abstract: An electronic device may be provided with a display mounted in a housing. The display may have an array of pixels configured to display images. A display cover layer may overlap the array of pixels. A light sensor such as a color ambient light sensor may be mounted in the electronic device and may receive ambient light through an ambient light sensor window region in the display cover layer or other portion of the electronic device. A diffuser may be located between the display cover layer and the ambient light sensor. The diffuser may have a substrate such as a glass substrate. A lens layer may be supported by the substrate. The lens layer may be formed from a layer of ultraviolet-light-curable polymer in which an array of lenses has been formed. An infrared-light-blocking-and-visible-light-transmitting filter may be used to reduce infrared light reaching the ambient light sensor.

    Electronic Devices Having Light Sensors Overlapped by Displays
    6.
    发明申请
    Electronic Devices Having Light Sensors Overlapped by Displays 审中-公开

    公开(公告)号：US20200348790A1

    公开(公告)日：2020-11-05

    申请号：US16401861

    申请日：2019-05-02

    Applicant: Apple Inc.

    Inventor： Kenneth J. Vampola ,  Joshua A. Spechler ,  Weili Chen ,  Christopher M. Dodson ,  Mahdi Nezamabadi

    IPC: G06F3/041 ,  G09G3/34 ,  H05B37/02 ,  G02F1/1335

    Abstract: An electronic device may have a display with an array of pixels configured to display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A set of the pixels may overlap the ambient light sensor so that ambient light measurements may be made on ambient light passing through the set of pixels. Control circuitry in the electronic device may control light transmission through the set of pixels so that different light transmission levels can be used in different ambient light conditions. Directional light measurements may be made by moving transparent pixels dynamically across the surface of the display overlapping the light sensor and/or by using pixelated light modulators to vary the angle of light rays measured by the ambient light sensor.

    Electronic Devices With Ambient Light Sensors and Emissive Displays
    7.
    发明申请
    Electronic Devices With Ambient Light Sensors and Emissive Displays 审中-公开

    公开(公告)号：US20200341512A1

    公开(公告)日：2020-10-29

    申请号：US16398093

    申请日：2019-04-29

    Applicant: Apple Inc.

    Inventor： Guocheng Shao ,  Dong Zheng ,  Christopher M. Dodson ,  Kenneth J. Vampola ,  Koorosh Aflatooni

    IPC: G06F1/16 ,  G09G3/34

    Abstract: An electronic device may have a display with an array of pixels that display images for a user. The electronic device may have an ambient light sensor for gathering ambient light information. A subset of the pixels in the array of pixels may overlap the ambient light sensor so that ambient light passing through the subset of pixels may be measured. Each pixel may have an emission enable transistor coupled in series with a light-emitting diode. Control circuitry in the electronic device may disable the subset of pixels to reduce stray light during ambient light measurements while enabling remaining pixels in the array of pixels to display an image. Ambient light sensor circuitry may gather ambient light sensor measurements over one or more periods by using transfer transistors to transfer change from the photodetectors to charge storage capacitors formed from floating diffusions in a common substrate.

    Electronic devices having ambient light sensors with light collimators
    8.
    发明授权
    Electronic devices having ambient light sensors with light collimators 有权

    公开(公告)号：US10395620B2

    公开(公告)日：2019-08-27

    申请号：US15713308

    申请日：2017-09-22

    Applicant: Apple Inc.

    Inventor： Ove Lyngnes ,  Tingjun Xu ,  Avery P. Yuen ,  Christopher M. Dodson ,  Tianbo Sun ,  Xianwei Zhao ,  Xingxing Cai ,  Sunggu Kang

    IPC: G09G5/10 ,  G02B27/30 ,  G02B5/02

    Abstract: An electronic device may be provided with a display. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An ambient light sensor window may be formed from the opening and may be aligned with color ambient light sensor. The ambient light sensor may have an integrated circuit with photodetectors. Ambient light passing through the ambient light sensor window may be diffused by a light diffuser having one or more light-diffusing layers. Diffused ambient light may be collimated using a light collimator having one or more light-collimating layers such as layers with inwardly facing protrusions.

    Electronic devices with an alignment-free spectrometer
    10.
    发明授权
    Electronic devices with an alignment-free spectrometer 有权

    公开(公告)号：US11536605B2

    公开(公告)日：2022-12-27

    申请号：US17025535

    申请日：2020-09-18

    Applicant: Apple Inc.

    Inventor： Sixian You ,  Sheng Liu ,  Christopher M. Dodson ,  Guocheng Shao ,  Mahdi Nezamabadi

    IPC: G01J3/18 ,  G01J3/02 ,  G01N21/65 ,  G01J3/44 ,  G01J3/28 ,  G01J3/14

    Abstract: An electronic device such as a portable electronic device may include a single-shot alignment-free spectrometer with no moving parts. The spectrometer may include a diffractive member, such as a grating, an aperture, and an image sensor that generates data in response to incident light. The diffractive member may diffract the incident light based on its wavelength and angle of incidence, and the aperture may further encode the light. The data generated by the image sensor may be used by control circuitry in combination with correlations between spectrometer measurements and known light profiles to determine the wavelength and angle of incidence of the light. These correlations may be determined using a deep neural network. Control circuitry may adjust one or more settings of the electronic device based on the wavelength and angle of incidence, or may use the wavelength and angle of incidence to determine information regarding an external object.

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